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Enhancement Ethanol Sensing Properties of NiO–SnO 2 Nanofibers
Author(s) -
Liu Li,
Li Shouchun,
Wang Lianyuan,
Guo Chuanchang,
Dong Qiongye,
Li Wei
Publication year - 2011
Publication title -
journal of the american ceramic society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.9
H-Index - 196
eISSN - 1551-2916
pISSN - 0002-7820
DOI - 10.1111/j.1551-2916.2010.04137.x
Subject(s) - non blocking i/o , nanofiber , electrospinning , x ray photoelectron spectroscopy , scanning electron microscope , transmission electron microscopy , materials science , selectivity , chemical engineering , ethanol , analytical chemistry (journal) , nanotechnology , chemistry , composite material , organic chemistry , polymer , catalysis , engineering
Pure and NiO–SnO 2 nanofibers are synthesized via a simple electrospinning method, and characterized by X‐ray diffraction, scanning electron microscopy, transmission electron microscopy, and X‐ray photoelectron spectroscopy. The sensor fabricated from 5 mol% NiO–SnO 2 nanofibers exhibits improved and excellent sensing properties to ethanol at 300°C. The response is up to 25.5 when the sensor is exposed to 100 ppm ethanol. The response and recovery times are about 2 and 3 s, respectively. The linear dependence of the sensitivity on the ethanol concentration is observed in the range of 5–500 ppm. Good selectivity is also observed in our studies. These results make NiO–SnO 2 nanofibers good candidates for fabricating practical ethanol sensors.